Sectional furnace grate



March 13, 1928.

o. J. JONES SECTIONAL FURNACE GRATE Filed June 22. 1926 K: 1 min a 1 1mrvlv u fm m k Patented Mar. 13, 1928.

UNITED STATES ORVILLE J. JONES, OF EMMETT, IDAHO.

SEGTIONAL FURNACE GRATE.

Application filed June 22, 1926.

This invention relates to sectional grate bars, and has for one of itsobjects to provide a device of this character which shall have thesections thereof hinged together in a manner to prevent strain on thehinge pins and which cannot be affected by heat in a manner to cause thewarping or sagging thereof.

With the foregoing and other objects in view, the nature of which willbecome apparent as the description proceeds the invention consists ofthe novel construction, combination and arrangement of parts hereinafterfully described and claimed, and illustrated in the accompanyingdrawing, wherein:

Figure 1 is a View in side elevation of a grate bar constructed inaccordance with my invention,

Figure 2 is a bottom plan view of the grate 29 bar, and

Figure 3 is a sectional view taken on the vertical plane indicated bythe line 3-3 of Figure 1.

Corresponding and like parts are referred to in the followingdescription, and designated in the several views of the accompanyingdrawing, by similar reference characters.

The grate bar comprises terminal sections 1 and intermediate sections 2.Each of the sections 1 and 2 comprises sides 3 and diag onal ribs 4which are formed integrally and of which the latter project beyond theformer. The terminal sections 1 are pro vided at their outer ends withsupporting lugs 5, and the lower portions of the inner ends of the sides3 of one of these sections are extended and formed to provide circularears 6. ends of the sides 3 of the other terminal extension 1 are offsetinwardly and formed. to provide circular ears 7 and arcuate shoulders 8.The lower portions of certain adjacent ends of the sides of each of theintermediate sections 2 are extended and formed to pro- 4 vide circularears 9, and the lower portions of the other ends of these sides areoffset inwardly and formed to provide circular cars 10 and arcuateshoulders 11. The ears of one section contact with those of another, theshoulders of one section contact with and The lower portions of theinner Serial No. 117,788.

rest upon the ears of another, and the sections are hinged together bypins 12. Those portions of the adjacent edges of the sides 3 which arelocated above the ears and beyond which the ears extend longitudinally,are vertically arranged and contact with each other.

As the shoulders 8 and 11 rest upon the ears 6 and 9, and as theadjacent ends of the sides 3 contact above the hinge pins 12, the weightborne by the grate bar is pro vented from having a shearing action uponthe hinge pins. Furthermore, the connection between the sections 1 and 2is such as to prevent them from warping or sagging under the actionof'heat thereon. The grate bar may be made of any required length, and agrate bar of any length may be provided with three or more sections, andthe sections may be readily assembled and connected.

It should be understood that the drawing is merely illustrative and doesnot pretend to give exact proportions. Furthermore, the said drawing isillustrative of a preferred construction, it being my expectation thatvarious changes and modifications may be made without departing from thespirit and scope of my invention.

What is claimed is A grate bar comprising terminal sections having sidesprovided at the inner ends of the sections with vertical edges and withcircular ears located below said edges and extending longitudinallybeyond the same, intermediate sections having sides provided at the endsof the sections with vertical edges and with circular ears located belowsaid edges and extending longitudinally beyond the same, ears of oneterminal section and the ears at one end of each intermediate sectionbeing laterally offset to permit them to be arranged in overlappedrelation with respect to the remaining ears and to provide arcuateshoulders contacting with the upper sides of the remaining ears, andpivotpins passing through the ears.

In testimony whereof Iaflix my signature.

ORVILLE J. JONES.

